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Philco 40-140 Field Coil Replacement
radiola
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Posts: 64
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Joined: Dec 2010
City: Baltimore, MD
#47

01-31-2013, 03:44 PM
Hopefully this thread still has some life. After replacing the field coil with the resistor and installing a 4'' permanent magnet speaker, I was not happy with the cheap sound, so recently I changed to a 6'' speaker. The set picked up hum when I did that, so I had to increase the size of the second power cap from 4 uf to 16 uf before the hum left. I need to know if that is safe or not. Would the transformer get hotter? Seems to. Thanks !!!
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Philco 40-140 Field Coil Replacement - by radiola - 09-05-2012, 12:21 AM
RE: Philco 40-140 Field Coil Replacement - by radiola - 01-31-2013, 03:44 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration